Secondary battery.



No. 796,435. PATENTED AUG; 8, 1905. J. LANGELAAN.

SECONDARY BATTERY.

APPLICATION FILED FEB. 27, 1905.

Fig: 7.

OOO|O O OO OGJO OOIO Berlin.

UNITED ST T-Es PATENT OFFICE.

"JACOBUS LANGELAAN, or OBERSGHO-NEWEIDE, NEAR BERLIN, GERMANY, ASSIGNOR TO PFLUGER'ACCUMULATOREN-WERK-E AOTIIENGESELL- scams, 0']? BERLIN, GERMANY.

SECONDARY. BATTERY.;'

Specification of Letters Patent. v I

Patented Aug. 3, 1905.

Application filed retmr 'zq, 1905.- Serial 110.247.605. j

1 0.,v (zZZ" 1uh0m it may concern.-

Be 'itknown that I, J ACOBUS LANGELAAN, director, asub; t of the Queen of the Netherlands, residing at Oberschtinewidenear Germany, .ia've invented new and 'usee nents in Secondary Batteries, of fllb'wing is a specification. The-present invention relates to plates of 't'ive mass for secondary batteries which ll? C imposed of single pieces and inclo sed and 7 held together by'a protective envelop.

'lheinvention consists of a specialmode of constructing the parts of theplate supporting the separate pieces, which construction see curesthe protective envelop at certain intervals: and also holds the'st'rips of activemate 'rialf' firmly and connects-one with another. In this construction there areprovided a number of horizontal suppo rts provided with flanges,on the one hand,and connecting-pieces,

0n. the other, which connecting-pieces engage I between the flanges of the supports upon the bent partsof the protective envelop. The supports, connecting-pieces, ,and protective envelop are united one to the other at the con-- necting-p'ointsof the separate strips of active I mass by folding. v

The new active-mass plate is illustrated i the accompanying drawings in certain co'n-' structional forms as follows:

Figure 1 shows a portion of the plate in elevation] Figs, 2 and 3 are sections on the line AA and show the form} of the various partsbefore and after the folding.

Whereas according to Figs. 1, 2, and 3 U- shaped connecting-pieces and T-shaped supports are made use 01:, according to Figs. 4: and 5 and also-Gland 7 .Lshaped supports and connecting pieces are used. which become widerv on-folding, and thereby secure the'fas ten-ing of the protective envelop and the connectionof the separate pieces.

oneabov'e another. Around the lower strip 'of-"'-active'materia1-'a is placed a; perforated metal plate 6, which engages above around active material.

Figs.4 and 6 .again'show sections before the folding and i the flange d of" the Ul-shaped connecting pi ece c. Also'the middle and the upper strips. of active material ware each surrounded by a perforated metal plate 6. Further, the metal plate 6 inclos'es underneath a T-formed sup' 'port'e and above, again, a U-formed connecting-piece'a The lower limb of the support engages between the flanges d of vthe connecting-piece 0 ugon the bent parts or edges' a unitary whole is obtained inthe manner shown in Fig. 3. i

' According to Figs. 4 to 7 a single protective envelop-may be used for 'all thestrips of In this case the flanges 03 of the supports, e lie between the separate strips of active mass, and said flanges are farther apart than in the construction shown in Figs. 2 and 3. 1 On each side of the support the 'plate'b is pressed in between the flange d and then a connecting-piece 0', of arc-shaped, Fig. 4, or annular-shaped; Fig. 6,'secti0n inserted. If-in this constructional form the con- 'necting portions of the connecting-pieces, supports, and protective envelop are folded, then the connecting-pieces become wider and hold in this manner firmly theplate Z), serving as for all the strips of active material, as shown in Figs. 4. 5, 6, and -7. It is'much more important that the connecting portions of the .supportsprovided with flanges placed between the. separate pieces QfactiVe-materiaI, the protective envelop, and the connecting- .pieces, engaging between the flanges of the supports upon the bent-over sheet-metal parts of'the protective envelop should be-so folded that the pieces o'rstrips of' active material, the supports, the connecting-pieces, and the protective envelop should all, be connected together into one unitary whole. 

